20% of the spectators at a tennis match were women. 10% of them were girls, 30% are boys, and the remaining 3,600 spectators are men. find the total number of spectators at the match
So 100% - 20% - 10% - 30% = 40% 40% of people were men. It says that there were 3600 men and in order to find the total amount of people, do 3600/40% or 3600/.4 Which equals 9000